Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
chat xuc » chat huu, cam xuc, chao xu
chat duc » chat doc, chet duoc, pham duc
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ro » nang ho, nang ra, nang rong
nang co » nang cao, nang doc, nang noi
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((nang ro) or (nang co)) hoi. lieu va ((chat duc) OR (chat xuc)) gia thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang ro) OR (nang co)) hoi. lieu va ((chat duc) OR (chat xuc)) gia thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((nang ro) or (nang co)) hoi. lieu va ((chat duc) OR (chat xuc)) gia thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((nang ro) or (nang co)) hoi. lieu va ((chat duc) OR (chat xuc)) gia thanh vi cua tre*.